(AP)—One jolt hit in the middle of the night. Another caught fishermen at a nearby beach. Then the ground shook at supper. And then again, and again: More than 170 tremors were felt in Navidad in just five ...

The world's largest earthquakes occur at subduction zones - locations where a tectonic plate slips under another. But where along these extended subduction areas are great earthquakes most likely to happen? Scientists have ...

(Phys.org)—This spring, a Swedish scientist sparked international concern with a journal article saying that radioactive particles detected in 2010 showed North Korea had set off at least two small nuclear ...

It's known that large quakes trigger smaller quakes hours later as the strong seismic waves pass through the Earth. USGS and UC Berkeley seismologists have now shown that at least some large quakes – strike-slip ...

The earth is shaken daily by strong earthquakes recorded by a number of seismic stations worldwide. Tectonic tremor, however, is a new type of seismic signal that seismologist started studying only within ...

(PhysOrg.com) -- The scientific drilling ship Chikyu will set sail on April 1 on an ambitious expedition to drill into the fault that caused the devastating Tohoku earthquake and tsunami in March 2011. Emily ...

(PhysOrg.com) -- In the past, seismologists have had to rely on information provided by just a few sensors in the vicinity of an earthquake to get information about it, and then afterwards, on anecdotal evidence ...

A northeast Ohio well used to dispose of wastewater from oil and gas drilling almost certainly caused a series of 11 minor quakes in the Youngstown area since last spring, a seismologist investigating the quakes said Monday.